DataBaseball
2026
Miguel Ullola headshot

Pitcher · 2026

Miguel Ullola

Age
24
B/T
R/R
Height
6' 1"
Weight
205 lb
Number
#66
Born
June 19, 2002 in Puerto Plata, Dominican Republic
MLB debut
June 29, 2026
dbWAR
-.1
1 season(s)
IP
5.0
ERA
5.40
FIP
6.09
K/9
12.6
FIP−
146
100 = avg

Miguel Ullola is a relief pitcher for the Houston Astros. In 2026 he struck out 7 batters over 5.0 innings across 3 appearances, going 0-0. His ERA of 5.40 was 29.3% higher than the league average of 4.18. Stripping out defence, his 6.09 FIP suggests that his ERA had some help behind him. He missed bats on 29.7% of swings (14.3% of every pitch he threw), walked 5.0% of the batters he faced and struck out 35.0%. His -0.1 dbWAR is built from that FIP rather than runs allowed, so it credits him for what he controls and not for the defence behind him.

League context

Percentile among qualified pitchers, 2026.

FIP6.09
K/912.6
WHIP1.00
WAR-.1

Platoon splits

How left- and right-handed hitters fare against him.

Opponent batting by the side the hitter bats from, 2026. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB11112104.182.182.455.26436.4%
vs RHB982113.250.333.625.40333.3%

Pitch sequencing

What Miguel Ullola throws in each count, and what he follows each pitch with. Select any cell for the breakdown.

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Pitch arsenal

What he throws, how hard, and how often it misses in 2026.

Four-Seam Fastball74.0%5795.32,55350.9%25.9%
Slider20.8%1686.22,28943.8%37.5%
Miguel Ullola's arsenal by usage. Velocity is average release speed in mph, spin in rpm, and whiff rate is misses per swing — the cleanest single measure of whether a pitch beats hitters.

Pitching

Standard and advanced, by season.

Trend
2026305.000043715.406.091.0012.61.8129146-0.1

Head to head

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Miguel Ullola
How these are computed

wOBA uses linear weights measured from this season's own play-by-play rather than published constants, and wRC+ is park-adjusted against that same league. dbWAR is our own open implementation — not fWAR or bWAR — and the full derivation, including its simplifications, is on the methodology page.